Crash in HTTPDataLoader.fetch

Hi, I get some rare crash report in Sentry that lead me to an issue in HTTPDataLoader.
I don't know how to reproduce them and I am not sure what's going on.
Note: our app is using the 1.8.1 version of RealHTTP.

Here is the full crash report:

```
OS Version: iOS 15.4 (19E241)
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Crashed Thread: 3

Application Specific Information:
Metadata allocator corruption: allocation is NULL. curState: {0x0, 4248} - curStateReRead: {0x0, 4248} - newState: {0x20, 4216} - allocatedNewPage: false - requested size: 32 - sizeWithHeader: 32 - alignment: 8 - Tag: 14

Thread 3 Crashed:
0 libsystem_kernel.dylib 0x376432bbc __pthread_kill
1 libsystem_pthread.dylib 0x3b7795850 pthread_kill
2 libsystem_c.dylib 0x3163036a0 abort
3 libswiftCore.dylib 0x30a6c5018 swift::fatalError
4 libswiftCore.dylib 0x30a6ce694 swift::MetadataAllocator::Allocate
5 libswiftCore.dylib 0x30a6cf1f0 _swift_getGenericMetadata
6 libswiftCore.dylib 0x30a6b2d64 __swift_instantiateCanonicalPrespecializedGenericMetadata
7 libswiftCore.dylib 0x30a6ef59c swift::Demangle::__runtime::TypeDecoder::decodeMangledType
8 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
9 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
10 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
11 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
12 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
13 ZVVOneApp 0x20093609c __swift_instantiateConcreteTypeFromMangledName
14 ZVVOneApp 0x200954ae4 ThreadSafeDictionary.subscript.setter (ThreadSafeDictionary.swift:66)
15 ZVVOneApp 0x200952c38 HTTPDataLoader.fetch (HTTPDataLoader.swift:228)
16 ZVVOneApp 0x20099017c thunk for closure
17 Foundation 0x3042e2268 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
18 Foundation 0x3042f391c -[NSBlockOperation main]
19 Foundation 0x3042cda88 __NSOPERATION_IS_INVOKING_MAIN__
20 Foundation 0x3042ddf1c -[NSOperation start]
21 Foundation 0x3042e1364 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
22 Foundation 0x3042eeb78 __NSOQSchedule_f
23 libdispatch.dylib 0x300e9a044 _dispatch_block_async_invoke2
24 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
25 libdispatch.dylib 0x300e8fab4 _dispatch_continuation_pop$VARIANT$armv81
26 libdispatch.dylib 0x300e8f1f0 _dispatch_async_redirect_invoke
27 libdispatch.dylib 0x300e9c62c _dispatch_root_queue_drain
28 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
29 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread

Thread 0
0 libswiftCore.dylib 0x30a6d6f78 swift::_getWitnessTable
1 SwiftUI 0x31025345c PhysicalButtonPressBehavior.body.getter
2 SwiftUI 0x31019ad3c ViewBodyAccessor.updateBody
3 SwiftUI 0x310185bd0 BodyAccessor.setBody
4 SwiftUI 0x3101712bc ViewBodyAccessor.updateBody
5 SwiftUI 0x310179514 StaticBody.updateValue
6 SwiftUI 0x3101cfe38 Attribute.init
7 AttributeGraph 0x36bf1c110 AG::Graph::UpdateStack::update
8 AttributeGraph 0x36bf1b87c AG::Graph::update_attribute
9 AttributeGraph 0x36bf1a790 AG::Subgraph::update
10 SwiftUI 0x3101598e0 GraphHost.flushTransactions
11 SwiftUI 0x310c1463c GraphHost.asyncTransaction
12 SwiftUI 0x31014ce50 ViewGraphDelegate.updateGraph
13 SwiftUI 0x310157218 ViewRendererHost.updateViewGraph
14 SwiftUI 0x310150f6c ViewRendererHost.updateViewGraph
15 SwiftUI 0x31014ab80 ViewGraphDelegate.updateGraph
16 SwiftUI 0x310149e60 GraphHost.init
17 SwiftUI 0x31023245c thunk for closure
18 SwiftUI 0x310148650 NSRunLoop.flushObservers
19 SwiftUI 0x3101486c8 NSRunLoop.addObserver
20 SwiftUI 0x310217e54 thunk for closure
21 libswiftObjectiveC.dylib 0x365216bcc autoreleasepool
22 SwiftUI 0x31014857c NSRunLoop.addObserver
23 SwiftUI 0x3101487c0 NSRunLoop.addObserver
24 CoreFoundation 0x3014b4218 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
25 CoreFoundation 0x301485450 __CFRunLoopDoObservers
26 CoreFoundation 0x3014809d8 __CFRunLoopRun
27 CoreFoundation 0x301493c2c CFRunLoopRunSpecific
28 GraphicsServices 0x3428e5984 GSEventRunModal
29 UIKitCore 0x305fc1c4c -[UIApplication _run]
30 UIKitCore 0x305d5b3cc UIApplicationMain
31 SwiftUI 0x310335324 KitRendererCommon
32 SwiftUI 0x31027fdf8 runApp
33 SwiftUI 0x310265798 App.main
34 ZVVOneApp 0x200091a48 [inlined] ZVVApp.$main (ZVVApp.swift:5)
35 ZVVOneApp 0x200091a48 main
36 0x1048203d0

Thread 1
0 libdispatch.dylib 0x300eb6aa0 dispatch_queue_attr_make_with_autorelease_frequency
1 CFNetwork 0x302465cd8 CFURLRequestSetShouldStartSynchronously
2 CFNetwork 0x30246ec84 CFURLRequestSetHTTPRequestBodyParts
3 CFNetwork 0x30249f6a0 CFURLConnectionCreateWithProperties
4 CFNetwork 0x30251ba0c CFURLDownloadCancel
5 CFNetwork 0x302443d80 CFURLRequestSetURL
6 CFNetwork 0x302438514 _CFNetworkErrorGetLocalizedRecoverySuggestion
7 CFNetwork 0x30247869c CFURLCacheMemoryCapacity
8 CFNetwork 0x302456068 CFURLRequestSetHTTPRequestMethod
9 CFNetwork 0x30244ed44 _CFURLRequestSetContentDispositionEncodingFallbackArray
10 CFNetwork 0x30248fbdc CFHTTPCookieStorageCreateFromFile
11 CFNetwork 0x302444de4 CFURLRequestSetURL
12 CFNetwork 0x302446aec CFHTTPMessageCopyBody
13 libdispatch.dylib 0x300eb7090 _dispatch_call_block_and_release
14 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
15 libdispatch.dylib 0x300e934a0 _dispatch_lane_serial_drain$VARIANT$armv81
16 libdispatch.dylib 0x300e93f74 _dispatch_lane_invoke$VARIANT$armv81
17 libdispatch.dylib 0x300e9d8dc _dispatch_workloop_worker_thread
18 libsystem_pthread.dylib 0x3b7789e0c _pthread_wqthread

Thread 2
0 libsystem_kernel.dylib 0x37642d688 __ulock_wait
1 libsystem_platform.dylib 0x3b7776120 _os_unfair_lock_lock_slow
2 libswiftCore.dylib 0x30a6cf064 _swift_getGenericMetadata
3 libswiftCore.dylib 0x30a6b2d64 __swift_instantiateCanonicalPrespecializedGenericMetadata
4 libswiftCore.dylib 0x30a6ef59c swift::Demangle::__runtime::TypeDecoder::decodeMangledType
5 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
6 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
7 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
8 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
9 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
10 ZVVOneApp 0x20093609c __swift_instantiateConcreteTypeFromMangledName
11 ZVVOneApp 0x200954ae4 ThreadSafeDictionary.subscript.setter (ThreadSafeDictionary.swift:66)
12 ZVVOneApp 0x200952c38 HTTPDataLoader.fetch (HTTPDataLoader.swift:228)
13 ZVVOneApp 0x20099017c thunk for closure
14 Foundation 0x3042e2268 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
15 Foundation 0x3042f391c -[NSBlockOperation main]
16 Foundation 0x3042cda88 __NSOPERATION_IS_INVOKING_MAIN__
17 Foundation 0x3042ddf1c -[NSOperation start]
18 Foundation 0x3042e1364 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
19 Foundation 0x3042eeb78 __NSOQSchedule_f
20 libdispatch.dylib 0x300e9a044 _dispatch_block_async_invoke2
21 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
22 libdispatch.dylib 0x300e8fab4 _dispatch_continuation_pop$VARIANT$armv81
23 libdispatch.dylib 0x300e8f1f0 _dispatch_async_redirect_invoke
24 libdispatch.dylib 0x300e9c62c _dispatch_root_queue_drain
25 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
26 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread

Thread 3 Crashed:
0 libsystem_kernel.dylib 0x376432bbc __pthread_kill
1 libsystem_pthread.dylib 0x3b7795850 pthread_kill
2 libsystem_c.dylib 0x3163036a0 abort
3 libswiftCore.dylib 0x30a6c5018 swift::fatalError
4 libswiftCore.dylib 0x30a6ce694 swift::MetadataAllocator::Allocate
5 libswiftCore.dylib 0x30a6cf1f0 _swift_getGenericMetadata
6 libswiftCore.dylib 0x30a6b2d64 __swift_instantiateCanonicalPrespecializedGenericMetadata
7 libswiftCore.dylib 0x30a6ef59c swift::Demangle::__runtime::TypeDecoder::decodeMangledType
8 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
9 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
10 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
11 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
12 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
13 ZVVOneApp 0x20093609c __swift_instantiateConcreteTypeFromMangledName
14 ZVVOneApp 0x200954ae4 ThreadSafeDictionary.subscript.setter (ThreadSafeDictionary.swift:66)
15 ZVVOneApp 0x200952c38 HTTPDataLoader.fetch (HTTPDataLoader.swift:228)
16 ZVVOneApp 0x20099017c thunk for closure
17 Foundation 0x3042e2268 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
18 Foundation 0x3042f391c -[NSBlockOperation main]
19 Foundation 0x3042cda88 __NSOPERATION_IS_INVOKING_MAIN__
20 Foundation 0x3042ddf1c -[NSOperation start]
21 Foundation 0x3042e1364 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
22 Foundation 0x3042eeb78 __NSOQSchedule_f
23 libdispatch.dylib 0x300e9a044 _dispatch_block_async_invoke2
24 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
25 libdispatch.dylib 0x300e8fab4 _dispatch_continuation_pop$VARIANT$armv81
26 libdispatch.dylib 0x300e8f1f0 _dispatch_async_redirect_invoke
27 libdispatch.dylib 0x300e9c62c _dispatch_root_queue_drain
28 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
29 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread

Thread 4
0 libsystem_pthread.dylib 0x3b7789934 start_wqthread

Thread 5 name: com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 CoreFoundation 0x30147c764 __CFRunLoopServiceMachPort
3 CoreFoundation 0x301480a6c __CFRunLoopRun
4 CoreFoundation 0x301493c2c CFRunLoopRunSpecific
5 Foundation 0x3042abea8 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 Foundation 0x3042eae8c -[NSRunLoop(NSRunLoop) runUntilDate:]
7 UIKitCore 0x305f4109c -[UIEventFetcher threadMain]
8 Foundation 0x3042f8d28 __NSThread__start__
9 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 6
0 libsystem_kernel.dylib 0x37642d688 __ulock_wait
1 libsystem_platform.dylib 0x3b7776120 _os_unfair_lock_lock_slow
2 libswiftCore.dylib 0x30a6cf064 _swift_getGenericMetadata
3 libswiftCore.dylib 0x30a6b2d64 __swift_instantiateCanonicalPrespecializedGenericMetadata
4 libswiftCore.dylib 0x30a6ef59c swift::Demangle::__runtime::TypeDecoder::decodeMangledType
5 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
6 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
7 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
8 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
9 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
10 ZVVOneApp 0x20093609c __swift_instantiateConcreteTypeFromMangledName
11 ZVVOneApp 0x200954ae4 ThreadSafeDictionary.subscript.setter (ThreadSafeDictionary.swift:66)
12 ZVVOneApp 0x200952c38 HTTPDataLoader.fetch (HTTPDataLoader.swift:228)
13 ZVVOneApp 0x20099017c thunk for closure
14 Foundation 0x3042e2268 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
15 Foundation 0x3042f391c -[NSBlockOperation main]
16 Foundation 0x3042cda88 __NSOPERATION_IS_INVOKING_MAIN__
17 Foundation 0x3042ddf1c -[NSOperation start]
18 Foundation 0x3042e1364 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
19 Foundation 0x3042eeb78 __NSOQSchedule_f
20 libdispatch.dylib 0x300e9a044 _dispatch_block_async_invoke2
21 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
22 libdispatch.dylib 0x300e8fab4 _dispatch_continuation_pop$VARIANT$armv81
23 libdispatch.dylib 0x300e8f1f0 _dispatch_async_redirect_invoke
24 libdispatch.dylib 0x300e9c62c _dispatch_root_queue_drain
25 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
26 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread

Thread 7
0 libobjc.A.dylib 0x3303ead58 objc_release
1 AppSSOCore 0x3575717a0 -[SOConfigurationClient willHandleURL:responseCode:callerBundleIdentifier:]
2 AppSSOCore 0x3575723f8 +[SOAuthorizationCore _canPerformAuthorizationWithURL:responseCode:callerBundleIdentifier:useInternalExtensions:]
3 CFNetwork 0x30244d964 CFURLRequestSetMainDocumentURL
4 CFNetwork 0x302444240 CFURLRequestSetURL
5 CFNetwork 0x302454a78 CFURLRequestSetHTTPRequestMethod
6 CFNetwork 0x30244cbcc CFURLRequestSetMainDocumentURL
7 CFNetwork 0x30244ed28 _CFURLRequestSetContentDispositionEncodingFallbackArray
8 CFNetwork 0x30248fbdc CFHTTPCookieStorageCreateFromFile
9 CFNetwork 0x302444de4 CFURLRequestSetURL
10 CFNetwork 0x302446aec CFHTTPMessageCopyBody
11 libdispatch.dylib 0x300eb7090 _dispatch_call_block_and_release
12 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
13 libdispatch.dylib 0x300e934a0 _dispatch_lane_serial_drain$VARIANT$armv81
14 libdispatch.dylib 0x300e93f74 _dispatch_lane_invoke$VARIANT$armv81
15 libdispatch.dylib 0x300e9d8dc _dispatch_workloop_worker_thread
16 libsystem_pthread.dylib 0x3b7789e0c _pthread_wqthread

Thread 8
0 libsystem_kernel.dylib 0x37642d484 __psynch_cvwait
1 libsystem_pthread.dylib 0x3b778a85c _pthread_cond_wait$VARIANT$armv81
2 libc++.1.dylib 0x330534898 std::__1::condition_variable::wait
3 NewRelic 0x1055b0dbc NewRelic::WorkQueue::task_thread
4 NewRelic 0x1055b1340 std::__1::__async_assoc_state::__execute
5 NewRelic 0x1055b14e0 std::__1::__thread_proxy
6 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 9
0 libsystem_kernel.dylib 0x37642d484 __psynch_cvwait
1 libsystem_pthread.dylib 0x3b778a85c _pthread_cond_wait$VARIANT$armv81
2 libc++.1.dylib 0x330534898 std::__1::condition_variable::wait
3 NewRelic 0x1055b0dbc NewRelic::WorkQueue::task_thread
4 NewRelic 0x1055b1340 std::__1::__async_assoc_state::__execute
5 NewRelic 0x1055b14e0 std::__1::__thread_proxy
6 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 10
0 libswiftCore.dylib 0x30a6e773c swift::_gatherGenericParameterCounts
1 libswiftCore.dylib 0x30a6f19c8 _gatherGenericParameters
2 libswiftCore.dylib 0x30a6f0c38 (anonymous namespace)::DecodedMetadataBuilder::createBoundGenericType
3 libswiftCore.dylib 0x30a6eeec8 swift::Demangle::__runtime::TypeDecoder::decodeMangledType
4 libswiftCore.dylib 0x30a6eaee0 swift::Demangle::__runtime::TypeDecoder::decodeMangledType
5 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
6 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
7 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
8 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
9 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
10 AttributeGraph 0x36bf2109c AG::swift::metadata::mangled_type_name_ref
11 AttributeGraph 0x36bf21ea0 AG::LayoutDescriptor::Builder::visit_case
12 AttributeGraph 0x36bf20798 AG::swift::metadata::visit
13 AttributeGraph 0x36bf1ee70 AG::LayoutDescriptor::Builder::visit_element
14 AttributeGraph 0x36bf21c14 AG::swift::metadata_visitor::visit_field
15 AttributeGraph 0x36bf2082c AG::swift::metadata::visit
16 AttributeGraph 0x36bf1ee70 AG::LayoutDescriptor::Builder::visit_element
17 AttributeGraph 0x36bf21c14 AG::swift::metadata_visitor::visit_field
18 AttributeGraph 0x36bf2082c AG::swift::metadata::visit
19 AttributeGraph 0x36bf1ee70 AG::LayoutDescriptor::Builder::visit_element
20 AttributeGraph 0x36bf24b7c AG::swift::metadata::visit_heap_locals
21 AttributeGraph 0x36bf20b20 AG::LayoutDescriptor::make_layout
22 AttributeGraph 0x36bf21ccc AG::(anonymous namespace)::LayoutCache::drain_queue
23 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
24 libdispatch.dylib 0x300e9c748 _dispatch_root_queue_drain
25 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
26 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread

Thread 11
0 libsystem_kernel.dylib 0x37642cfd0 __semwait_signal
1 libsystem_c.dylib 0x3162e8a34 nanosleep
2 libsystem_c.dylib 0x3162fc704 sleep
3 ZVVOneApp 0x2008b7920 monitorCachedData (SentryCrashCachedData.c:144)
4 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 12
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 libsystem_kernel.dylib 0x37643880c thread_suspend
3 ZVVOneApp 0x2008b31dc handleExceptions (SentryCrashMonitor_MachException.c:295)
4 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 13
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 ZVVOneApp 0x2008b3208 handleExceptions (SentryCrashMonitor_MachException.c:303)
3 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 14
0 libsystem_kernel.dylib 0x37642cfd0 __semwait_signal
1 libsystem_c.dylib 0x3162e8a34 nanosleep
2 Foundation 0x30430a9fc +[NSThread sleepForTimeInterval:]
3 ZVVOneApp 0x2008595ac -[SentryANRTracker detectANRs] (SentryANRTracker.m:75)
4 Foundation 0x3042f8d28 __NSThread__start__
5 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 15
0 libsystem_kernel.dylib 0x37642d484 __psynch_cvwait
1 libsystem_pthread.dylib 0x3b778a85c _pthread_cond_wait$VARIANT$armv81
2 libc++.1.dylib 0x330534898 std::__1::condition_variable::wait
3 NewRelic 0x1055b0dbc NewRelic::WorkQueue::task_thread
4 NewRelic 0x1055b1340 std::__1::__async_assoc_state::__execute
5 NewRelic 0x1055b14e0 std::__1::__thread_proxy
6 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 16
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 CoreFoundation 0x30147c764 __CFRunLoopServiceMachPort
3 CoreFoundation 0x301480a6c __CFRunLoopRun
4 CoreFoundation 0x301493c2c CFRunLoopRunSpecific
5 Foundation 0x3042abea8 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 Foundation 0x3042ac61c -[NSRunLoop(NSRunLoop) run]
7 SwiftUI 0x3101ea5bc DisplayLink.asyncThread
8 SwiftUI 0x3101e8860 DisplayLink.asyncThread
9 Foundation 0x3042f8d28 __NSThread__start__
10 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 17
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 CoreFoundation 0x30147c764 __CFRunLoopServiceMachPort
3 CoreFoundation 0x301480a6c __CFRunLoopRun
4 CoreFoundation 0x301493c2c CFRunLoopRunSpecific
5 CFNetwork 0x302673dc8 _CFURLStorageSessionDisableCache
6 Foundation 0x3042f8d28 __NSThread__start__
7 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 18
0 libsystem_kernel.dylib 0x37642caac mach_msg_trap
1 libsystem_kernel.dylib 0x37642d078 mach_msg
2 CoreFoundation 0x30147c764 __CFRunLoopServiceMachPort
3 CoreFoundation 0x301480a6c __CFRunLoopRun
4 CoreFoundation 0x301493c2c CFRunLoopRunSpecific
5 CoreFoundation 0x30150edc8 CFRunLoopRun
6 CoreMotion 0x31a3669dc CLMotionActivity::isTypeInVehicle
7 libsystem_pthread.dylib 0x3b778b344 _pthread_start

Thread 19
0 libsystem_kernel.dylib 0x37642d688 __ulock_wait
1 libsystem_platform.dylib 0x3b7776120 _os_unfair_lock_lock_slow
2 libswiftCore.dylib 0x30a6cf064 _swift_getGenericMetadata
3 libswiftCore.dylib 0x30a6b2d64 __swift_instantiateCanonicalPrespecializedGenericMetadata
4 libswiftCore.dylib 0x30a6ef59c swift::Demangle::__runtime::TypeDecoder::decodeMangledType
5 libswiftCore.dylib 0x30a6ea020 swift_getTypeByMangledNodeImpl
6 libswiftCore.dylib 0x30a6e9d98 swift_getTypeByMangledNode
7 libswiftCore.dylib 0x30a6ea50c swift_getTypeByMangledNameImpl
8 libswiftCore.dylib 0x30a6e7d10 swift_getTypeByMangledName
9 libswiftCore.dylib 0x30a6e7f24 swift_getTypeByMangledNameInContext
10 ZVVOneApp 0x20093609c __swift_instantiateConcreteTypeFromMangledName
11 ZVVOneApp 0x200954ae4 ThreadSafeDictionary.subscript.setter (ThreadSafeDictionary.swift:66)
12 ZVVOneApp 0x200952c38 HTTPDataLoader.fetch (HTTPDataLoader.swift:228)
13 ZVVOneApp 0x20099017c thunk for closure
14 Foundation 0x3042e2268 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
15 Foundation 0x3042f391c -[NSBlockOperation main]
16 Foundation 0x3042cda88 __NSOPERATION_IS_INVOKING_MAIN__
17 Foundation 0x3042ddf1c -[NSOperation start]
18 Foundation 0x3042e1364 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
19 Foundation 0x3042eeb78 __NSOQSchedule_f
20 libdispatch.dylib 0x300e9a044 _dispatch_block_async_invoke2
21 libdispatch.dylib 0x300eb8090 _dispatch_client_callout
22 libdispatch.dylib 0x300e8fab4 _dispatch_continuation_pop$VARIANT$armv81
23 libdispatch.dylib 0x300e8f1f0 _dispatch_async_redirect_invoke
24 libdispatch.dylib 0x300e9c62c _dispatch_root_queue_drain
25 libdispatch.dylib 0x300e9cde8 _dispatch_worker_thread2
26 libsystem_pthread.dylib 0x3b7789dd0 _pthread_wqthread
```

Start with the crash frames for HTTPDataLoader.swift:228 and ThreadSafeDictionary.swift:66, then inspect the related code paths and concurrency behavior. Done means establishing whether these locations account for the reported crash and documenting or implementing a verified resolution, with regression coverage if the project provides a suitable test entry point.

Written by the indexing model from the issue text.